The GNU MP Bignum Library，非常好用的大數運算庫，GMP is a free library for arbitrary precision arithmetic, operating on signed integers, rational numbers, and floating point numbers.
上傳時間： 2014-01-08
上傳用戶：a673761058
QT3.3.4在遠峰2410上移植 HOST 環境（虛擬機VM6.0）： 系統：redhat 9 完全安裝 交叉工具arm 2.95.3 TARGET環境 arm 2410 240*320屏外加觸摸屏 cramfs文件系統 軟件： cross-2.95.3.tar.bz2 qt-embedded-free-3.3.4.tar.bz2 qt-x11-free-3.3.4.tar.bz2 tmake-1.11.tar.gz 經測試，在3.3.2的交叉編譯工具也通過
上傳時間： 2014-12-22
上傳用戶：上善若水
不知為何，在rh9下編譯有警告，但是可以正常編譯出結果 HOST 環境（虛擬機VM6.0）： 系統：redhat 9 完全安裝 交叉工具arm 2.95.3 TARGET環境 arm 2410 240*320屏外加觸摸屏 cramfs文件系統 軟件： cross-2.95.3.tar.bz2 //交叉編譯器 qtopia-free-src-2.2.0.tar.gz //qtopia e2fsprogs-1.35.tar.gz // jpegsrc.v6b.tar.gz // libpng-1.2.14.tar.bz2 tslib-1.3.tar.bz2 zlib-1.2.3.tar.bz2
標簽：
上傳時間： 2016-10-23
上傳用戶：as275944189
The MAX481E, MAX483E, MAX485E, MAX487E–MAX491E, and MAX1487E are low-power transceivers for RS-485 and RS-422 communications in harsh environments. Each driver output and receiver input is protected against ±15kV electrostatic discharge (ESD) shocks, without latchup. These parts contain one driver and one receiver. The MAX483E, MAX487E, MAX488E, and MAX489E feature reduced slewrate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, thus allowing error-free data transmission up to 250kbps. The driver slew rates of the MAX481E, MAX485E, MAX490E, MAX491E, and MAX1487E are not limited, allowing them to transmit up to 2.5Mbps.
標簽： MAX transceivers 485 low-power
上傳時間： 2013-12-22
上傳用戶：小寶愛考拉
microchip公司提供的無線ziebee協議的演示程序，支持802.15.4，是free并且非常不錯的協議程序。安裝后即可看到源代碼的C語言文件
上傳時間： 2016-10-29
上傳用戶：邶刖
keil開發環境，small RTOS操作系統移植到５１單片機上，源碼完整，具有很好學習及參考價值．
上傳時間： 2016-10-31
上傳用戶：miaochun888
pSOSystem系統調用的例程，對學RTOS有幫助！
上傳時間： 2016-11-06
上傳用戶：zhuyibin
本文主要討論了如何在嵌入式實時操作系統μC/OSII下移植實現LwIP這套TCP/IP協議棧，使μC/OS II成為支持網絡的RTOS。
上傳時間： 2016-11-11
上傳用戶：duoshen1989
C 開發的有限元軟件，界面還可以，不錯，可以試試。 FElt is a free system for introductory level finite element analysis. It is primarily intended as a teaching tool for introductory type courses in finite elements - probably in the mechanical/structural/civil fields. In a command line environment, FElt uses an intuitive, straightforward input syntax to describe problems. It also includes a graphical user interface for workstations that allows the user to set-up, solve and post-process the problem in a single CAD-like environment.
上傳時間： 2014-03-09
上傳用戶：zycidjl
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.1 or any later version published by the Free Software Foundation with no Invariant Sections, with no Front- Cover Texts, and with no Back-Cover Texts. A copy of the license is included in the section entitled “GNU Free Documentation License”.
標簽： Permission distribute the document
上傳時間： 2016-11-30
上傳用戶：lxm
